CN114458226B - Hydraulic pipeline setting type cable passing packer and well completion pipe string using same - Google Patents
Hydraulic pipeline setting type cable passing packer and well completion pipe string using same Download PDFInfo
- Publication number
- CN114458226B CN114458226B CN202111182753.5A CN202111182753A CN114458226B CN 114458226 B CN114458226 B CN 114458226B CN 202111182753 A CN202111182753 A CN 202111182753A CN 114458226 B CN114458226 B CN 114458226B
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- hydraulic pipeline
- cable passing
- type cable
- hydraulic
- setting type
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- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1295—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention provides a hydraulic pipeline setting type cable passing packer and a well completion pipe string using the same, wherein the inner wall of the tail end of an upper joint is in threaded connection with the outer wall of the head end of a central pipe, a pressure transmission hole penetrating through the upper joint is formed in the inner wall of the upper joint, a cavity is formed between the inner wall of the lower part of the upper joint and the upper part of the outer wall of the central pipe, a piston is slidably arranged in the cavity, a connecting sleeve is arranged on the central pipe at the tail end of the cavity, a locking ring is further arranged between the inner wall of the connecting sleeve and the outer wall of the upper joint, an upper gauge ring, a rubber barrel and a lower gauge ring are sequentially arranged on the central pipe below the connecting sleeve from top to bottom, an upper cone, a slip and a lower cone are sequentially arranged on the central pipe below the lower gauge ring from top to bottom, a clamp spring is arranged between the lower gauge ring and the upper cone, and a baffle ring is arranged at the tail end of the central pipe. The invention ensures that the well completion pipe string is set without throwing or fishing a blanking plug, thereby saving time and cost.
Description
Technical Field
The invention relates to the technical field of oil and natural gas well completion, in particular to a hydraulic pipeline setting type cable-passing packer and a well completion pipe string using the same.
Background
In the technical field of oil and gas well completion, a cable and a hydraulic pipeline are frequently required to be run in an oil and gas well, and a cable passing packer provides a traversing channel of the cable and the hydraulic pipeline, so the cable passing packer is a common tool in the oil and gas well completion operation. The existing cable-passing packer is required to throw the blanking plug before setting, then oil pipe is pressed for setting, and the blanking plug is taken out through steel wire operation after setting. The plugging device is thrown and the plugging device is taken out with a plurality of equipment, which consumes long operation time and has high cost. The well completion of the oil and gas well is developed to an intelligent well completion mode, one of the purposes of the intelligent well completion is to realize remote control of underground operation, and the operation mode of the cable packer and a well completion pipe column thereof can not meet the intelligent well completion requirement. After the existing cable passing packer and the well completion pipe string thereof work for a long time in the pit, the cable passing packer and the well completion pipe string thereof cannot be recovered due to solid particle precipitation and the like, and the operation of milling is needed, so that the operation efficiency is seriously affected. There is a need to study new wireline packers and completion strings.
Disclosure of Invention
The hydraulic pipeline setting type cable passing packer and the well completion pipe string using the same overcome the defects in the prior art, the existing cable passing packer cannot meet the intelligent well completion requirement, the cable passing packer and the well completion pipe string cannot be recovered after the existing cable passing packer is used for a long time, and the operation efficiency is seriously influenced.
The aim of the invention is achieved by the following technical scheme.
The hydraulic pipeline setting type cable passing packer comprises an upper joint, a central pipe, a connecting sleeve, an upper gauge ring, a rubber cylinder, a lower gauge ring, an upper cone, slips, a lower cone and a baffle ring,
the inner wall of the tail end of the upper joint is in threaded connection with the outer wall of the head end of the central tube, a pressure transmission hole penetrating through the upper joint is formed in the inner wall of the upper joint, a cavity is formed between the inner wall of the lower part of the upper joint and the upper part of the outer wall of the central tube, a piston is slidably arranged in the cavity, a connecting sleeve is arranged on the central tube at the tail end of the cavity, a locking ring is further arranged between the inner wall of the connecting sleeve and the outer wall of the upper joint, an upper gauge ring, a rubber cylinder and a lower gauge ring are sequentially arranged on the central tube below the connecting sleeve from top to bottom, an upper cone, a slip and a lower cone are sequentially arranged on the central tube from top to bottom, a clamping spring is arranged between the lower gauge ring and the upper cone, and the blocking ring is arranged at the tail end of the central tube.
The upper joint is respectively provided with a connecting threaded hole, a cable penetrating hole, an oil pipe threaded hole and a bleed valve installation threaded hole, wherein the connecting threaded hole is communicated with the pressure transmission hole, the connecting threaded hole is used for being connected with a hydraulic pipeline of the cable packer, the oil pipe threaded hole is used for being connected with the tail end of the middle oil pipe, and the bleed valve installation threaded hole is used for installing a bleed valve.
And a hydraulic anchor is arranged on the outer wall of the upper joint, a spring is arranged in the hydraulic anchor, and the spring is fixed on the outer wall of the upper joint by using a pressing plate and a screw.
The connecting sleeve is connected with the upper joint through a setting starting pin.
The lock ring is connected with the connecting sleeve through an anti-rotation pin.
The upper cone is connected with the central tube through a slip setting starting pin.
The lower cone is connected with the central tube through an unsealing pin.
The outside of slips is provided with the slips cage, the slips cage pass through the shear pin with the slips links to each other still be provided with the slips spring between the inner wall of slips cage and the outer wall of slips.
The inner wall of the lock ring and the outer wall of the central tube are provided with matched zigzag threads so as to realize the purpose of only allowing the lock ring to move downwards along the outer wall of the central tube.
A well completion pipe string using a hydraulic pipeline setting type cable passing packer comprises an upper oil pipe, a downhole safety valve, a middle oil pipe, a deflation valve, the hydraulic pipeline setting type cable passing packer and a lower oil pipe,
the tail end of the upper oil pipe is connected with the head end of the underground safety valve, the tail end of the underground safety valve is connected with the head end of the hydraulic pipeline setting type cable passing packer through the middle oil pipe, the head end of the hydraulic pipeline setting type cable passing packer is further provided with the air release valve, the tail end of the hydraulic pipeline setting type cable passing packer is connected with the head end of the lower oil pipe, the ground hydraulic control system is connected with the underground safety valve through the underground safety valve hydraulic pipeline, the air release valve hydraulic pipeline is led out from the underground safety valve hydraulic pipeline through an upper three-way joint, the air release valve hydraulic pipeline is connected with the air release valve, the cable passing hydraulic pipeline is led out from the air release valve hydraulic pipeline through a lower three-way joint, and the cable passing packer hydraulic pipeline is connected with the hydraulic pipeline setting type cable passing packer.
The using method of the completion pipe string by using the hydraulic pipeline setting type cable passing packer comprises the following steps:
the method comprises the steps that 1, a completion pipe column of a cable passing packer through a hydraulic pipeline setting type is put into a designed position, a ground hydraulic system pressurizes a downhole safety valve hydraulic pipeline, namely hydraulic oil is injected, the pressure is sequentially transmitted to a pressure transmission hole through an upper three-way joint, a deflation valve hydraulic pipeline, a lower three-way joint and the cable passing packer hydraulic pipeline, the hydraulic oil enters a hydraulic cavity formed by the upper joint, a piston and a central pipe from the pressure transmission hole on the upper joint, the setting starting pin is sheared after a certain pressure is reached, an upper gauge ring descends a compression rubber cylinder, an upper cone descends to shear a slip setting starting pin, the upper cone pushes the slip onto a lower cone, then the shearing pin is sheared, the slip opens and bites a sleeve under the action of an inclined plane, setting force is completely transmitted to a deblocking pin, and in the descending process of the connecting sleeve, the locking ring and the central pipe are scratched, zigzag threads are arranged on the locking ring and the locking ring only allow the locking ring to move downwards along the outer wall of the central pipe, the pressure is continuously pressurized to the designed pressure and is stabilized for a period, the rubber cylinder and the cable is completely set, under the action of the locking ring setting type cable passing packer, and the cable setting state is kept;
step 2, a deflation valve is arranged at the upper part of the hydraulic pipeline setting type cable passing packer, when the deflation valve is closed, the lower part of the hydraulic pipeline setting type cable passing packer is a closed space, annular pressure is transmitted to the hydraulic pipeline setting type cable passing packer to cause the trend of upward movement of the hydraulic pipeline setting type cable passing packer, the trend is the same as that when the hydraulic pipeline setting type cable passing packer is disassembled, the annular pressure is completely transferred to a deblocking pin, and when the deflation valve is closed, the pressure under the well enables the hydraulic anchor to open and bite into a sleeve, so that the hydraulic pipeline setting type cable passing packer is prevented from being deblocking in advance;
step 3, when a completion string of the hydraulic pipeline setting type cable passing packer needs to be lifted out, the completion string of the hydraulic pipeline setting type cable passing packer is directly lifted up, the central pipe of the hydraulic pipeline setting type cable passing packer moves upwards, the lower cone is fixed due to the fact that the slips are meshed with the sleeve, the deblocking pin between the central pipe and the lower cone is sheared off, the lower cone, the slip cage, the upper cone and the piston move downwards relative to the central pipe, the slips are retracted under the action of the slip spring, the hydraulic pipeline setting type cable passing packer is deblocked, and the completion string of the hydraulic pipeline setting type cable passing packer can be lifted out to the ground;
when the completion string with the hydraulic line set type cable passing packer cannot be unset, the surface hydraulic system pressurizes the underground safety valve hydraulic line, the pressure is transmitted to the unset pin, then the completion string with the hydraulic line set type cable passing packer is lifted, the hydraulic line set type cable passing packer is unset, and the completion string with the hydraulic line set type cable passing packer is lifted.
The beneficial effects of the invention are as follows: the hydraulic pipeline is connected to the upper joint of the hydraulic pipeline setting type cable passing packer, and the ground equipment applies liquid pressure in the hydraulic pipeline to set the cable passing packer, so that the operation is convenient, the operations of plugging and removing the plugging device in the original operation mode are omitted, and the time and the cost are saved;
the hydraulic pipeline which is set up by the cable packer is connected from the hydraulic pipeline of the underground safety valve/air release valve which is connected with the cable packer, and the hydraulic pipeline and the underground safety valve/air release valve share the same main hydraulic pipeline, so that the hydraulic pipeline cannot be increased;
when the hydraulic pipeline is recovered and the cable packer and the completion pipe string thereof are in setting, larger pressure can be applied in the hydraulic pipeline, and the packer is facilitated to be unset.
Drawings
FIG. 1 is a schematic illustration of a completion string of the present invention using a hydraulic line set-up type over-the-cable packer;
FIG. 2 is a schematic diagram of a hydraulic line set-up type cable-through packer according to the present invention, wherein (a) is a schematic diagram of an overall sectional structure, (b) is a schematic diagram of an overall external structure, (c) is a top view of FIG. a, and (d) is a schematic diagram of a sectional structure of A-A in FIG. b;
FIG. 3 is a schematic structural view of the upper joint in the present invention, wherein (a) is a schematic structural view in whole section, and (b) is a schematic structural view of the upper joint from left to right;
in the figure: 1 is an upper oil pipe, 2 is an underground safety valve hydraulic pipeline, 3 is an underground safety valve, 4 is a relief valve hydraulic pipeline, 5 is a middle oil pipe, 6 is a relief valve, 7 is a cable-passing packer hydraulic pipeline, 8 is a hydraulic pipeline setting type cable-passing packer, 9 is a lower oil pipe, 10 is an upper three-way joint, 11 is a lower three-way joint, 12 is an upper joint, 13 is a piston, 14 is a central pipe, 15 is a setting start pin, 16 is a connecting sleeve, 17 is a locking ring, 18 is an upper gauge ring, 19 is a rubber sleeve, 20 is a slip setting start pin, 21 is a lower gauge ring, 22 is an upper cone, 23 is a clamping spring, 24 is a slip, 25 is a slip spring, 26 is a slip cage, 27 is a guide pin, 28 is a lower cone, 29 is an anti-rotation pin, 30 is a hydraulic anchor, 31 is a pressing plate, 32 is a screw, 33 is a spring, 34 is a deblocking pin, 35 is a shear pin, 37 is a connecting threaded hole, 38 is a pressure transmitting hole, 39 is a cable-passing hole, 40 is a threaded hole, 41 is a threaded hole, and 41 is a relief valve installation threaded hole.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
The technical scheme of the invention is further described by specific examples.
Example 1
The hydraulic pipeline setting type cable passing packer comprises an upper joint 12, a central pipe 14, a connecting sleeve 16, an upper gauge ring 17, a rubber sleeve 19, a lower gauge ring 21, an upper cone 22, slips 24, a lower cone 28 and a baffle ring 35,
the inner wall of the tail end of the upper joint 12 is in threaded connection with the outer wall of the head end of the central tube 14, a pressure transmission hole 38 penetrating through the upper joint 12 is formed in the inner wall of the upper joint 12, a cavity is formed between the inner wall of the lower part of the upper joint 12 and the upper part of the outer wall of the central tube 14, a piston 13 is slidably arranged in the cavity, a connecting sleeve 16 is arranged on the central tube 14 at the tail end of the cavity, a locking ring 17 is further arranged between the inner wall of the connecting sleeve 16 and the outer wall of the upper joint 12, an upper gauge ring 17, a rubber barrel 19 and a lower gauge ring 21 are sequentially arranged on the central tube 14 below the connecting sleeve 16 from top to bottom, an upper cone 22, a slip 24 and a lower cone 28 are sequentially arranged on the central tube 14 below the lower gauge ring 21 from top to bottom, a clamp spring 23 is arranged between the lower gauge ring 21 and the upper cone 22, and a baffle ring 34 is arranged at the tail end of the central tube 14.
The upper joint 12 is respectively provided with a connecting threaded hole 37, a cable passing hole 39, an oil pipe threaded hole 40 and a relief valve installation threaded hole 41, the connecting threaded hole 37 is communicated with the pressure transmission hole 38, the connecting threaded hole 37 is used for connecting a hydraulic pipeline 7 of the cable packer, the oil pipe threaded hole 40 is used for connecting with the tail end of the middle oil pipe 5, and the relief valve installation threaded hole 41 is used for installing the relief valve 6.
A hydraulic anchor 30 is installed on the outer wall of the upper joint 12, a spring 33 is installed in the hydraulic anchor, and the spring 33 is fixed on the outer wall of the upper joint 12 by a pressing plate 31 and a screw 32.
Example two
On the basis of the first embodiment, the connection sleeve 16 and the upper joint 12 are connected by means of a setting start pin 15.
The locking ring 17 and the connecting sleeve 16 are connected by an anti-rotation pin 29.
The upper cone 22 is connected to the base pipe 14 by slip setting activation pins 20.
The lower cone 28 is connected to the base pipe 14 by means of a deblocking pin 34.
A slip cage 26 is provided on the outside of the slips 24, the slip cage 26 being connected to the slips 24 by shear pins 36, and a slip spring 25 being provided between the inner wall of the slip cage 26 and the outer wall of the slips 24.
The inner wall of the locking ring 17 and the outer wall of the central tube 14 are formed with mating saw-tooth threads for the purpose of allowing only the locking ring 17 to move downwardly along the outer wall of the central tube 14.
Example III
On the basis of the second embodiment, the completion string using the hydraulic pipeline setting type cable passing packer comprises an upper oil pipe 1, a subsurface safety valve 3, a middle oil pipe 5, a deflation valve 6, the hydraulic pipeline setting type cable passing packer 8 and a lower oil pipe 9,
the tail end of the upper oil pipe 1 is connected with the head end of the underground safety valve 3, the tail end of the underground safety valve 3 is connected with the head end of the hydraulic pipeline setting type cable passing packer 8 through the middle oil pipe 5, the head end of the hydraulic pipeline setting type cable passing packer 8 is further provided with the air release valve 6, the tail end of the hydraulic pipeline setting type cable passing packer 8 is connected with the head end of the lower oil pipe 9, the ground hydraulic control system is connected with the underground safety valve 3 through the underground safety valve hydraulic pipeline 2, the air release valve hydraulic pipeline 4 is led out from the underground safety valve hydraulic pipeline 2 through an upper three-way joint 10, the air release valve hydraulic pipeline 4 is connected with the air release valve 6, the cable passing packer hydraulic pipeline 7 is led out from the air release valve hydraulic pipeline 4 through a lower three-way joint 11, and the cable passing packer hydraulic pipeline 7 is connected with the hydraulic pipeline setting type cable passing packer 8.
Example IV
The using method of the completion pipe string by using the hydraulic pipeline setting type cable passing packer comprises the following steps:
step 1, a completion pipe column of a cable packer is set by utilizing a hydraulic pipeline, the completion pipe column is put into a designed position, a ground hydraulic system pressurizes a downhole safety valve hydraulic pipeline 2, namely hydraulic oil is injected, the pressure is sequentially transmitted to a pressure transmission hole 37 through an upper three-way joint 10, a deflating valve hydraulic pipeline 4, a lower three-way joint 11 and the cable packer hydraulic pipeline 7, the hydraulic oil enters a hydraulic cavity formed by the upper joint 12, a piston 13 and a central pipe 14 from a pressure transmission hole 38 on the upper joint 12, the cable packer is sheared after reaching a certain pressure, a setting starting pin 15 is sheared, an upper gauge ring 18 descends a compression rubber cylinder 19, an upper cone 23 is pushed to descend to shear a slip setting starting pin 20, the upper cone 23 pushes a slip 24 onto a lower cone 28, then the shear pin 36 is sheared, the slip 24 is opened and bitten into a sleeve under the action of a slope, the setting force is completely transmitted to a deblocking pin 24, a locking ring 17 is scratched from the central pipe 14 in the descending process of the connecting sleeve 16, the locking ring 17 and the central pipe 14 are provided with zigzag threads, the locking ring 17 is only allowed to move downwards along the outer wall of the central pipe 14, the sealing ring 19 is continuously pressurized to the design pressure and the sealing ring 19 and the cable packer is completely separated from the sealing ring 8 under the action of the condition, and the sealing ring 8 is completely sealed by the sealing ring is completely under the pressure;
step 2, a deflation valve 6 is arranged at the upper part of the hydraulic pipeline setting type cable passing packer 8, when the deflation valve 6 is closed, the lower part of the hydraulic pipeline setting type cable passing packer 8 is a closed space, annular pressure is transmitted to the hydraulic pipeline setting type cable passing packer 8, so that the hydraulic pipeline setting type cable passing packer 8 has a trend of moving upwards, the trend is the same as that when the hydraulic pipeline setting type cable passing packer 8 is disassembled, annular pressure is completely transferred to a deblocking pin 34, and when the deflation valve 6 is closed, the pressure in the pit enables a hydraulic anchor 30 to open and bite into a sleeve, so that the hydraulic pipeline setting type cable passing packer 8 is prevented from being deblocking in advance;
step 3, when a completion string of the hydraulic pipeline setting type cable passing packer needs to be lifted out, the completion string of the hydraulic pipeline setting type cable passing packer is directly lifted, the central tube 14 of the hydraulic pipeline setting type cable passing packer 8 moves upwards, the lower cone 28 is fixed due to the fact that the slips 24 are meshed with the sleeve, the deblocking pin 34 between the central tube 14 and the lower cone 28 is sheared off, the lower cone 28, the slip cage 26, the upper cone 22 and the piston 13 move downwards relative to the central tube 14, the slips 24 are retracted under the action of the slip springs 25, the hydraulic pipeline setting type cable passing packer 8 is deblocked, and the completion string of the hydraulic pipeline setting type cable passing packer can be lifted out to the ground;
when the completion string using the hydraulic line set-type over-cable packer cannot be unset, the surface hydraulic system pressurizes the subsurface safety valve hydraulic line 2, which is transferred to the unset pins 34, and then the completion string using the hydraulic line set-type over-cable packer is lifted up to unset the hydraulic line set-type over-cable packer 8, and the completion string using the hydraulic line set-type over-cable packer is lifted up.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (3)
1. Hydraulic pipeline setting type cable passing packer, its characterized in that: comprises an upper joint, a central pipe, a connecting sleeve, an upper gauge ring, a rubber cylinder, a lower gauge ring, an upper cone, slips, a lower cone and a baffle ring,
the inner wall of the tail end of the upper joint is in threaded connection with the outer wall of the head end of the central tube, a pressure transmission hole penetrating through the upper joint is formed in the inner wall of the upper joint, a cavity is formed between the inner wall of the lower part of the upper joint and the upper part of the outer wall of the central tube, a piston is slidably arranged in the cavity, a connecting sleeve is arranged on the central tube at the tail end of the cavity, a locking ring is further arranged between the inner wall of the connecting sleeve and the outer wall of the upper joint, an upper gauge ring, a rubber cylinder and a lower gauge ring are sequentially arranged on the central tube below the connecting sleeve from top to bottom, an upper cone, a slip and a lower cone are sequentially arranged on the central tube below the lower gauge ring, a clamping spring is arranged between the lower gauge ring and the upper cone, and the blocking ring is arranged at the tail end of the central tube;
the upper joint is respectively provided with a connecting threaded hole, a cable penetrating hole, an oil pipe threaded hole and a bleed valve installation threaded hole, wherein the connecting threaded hole is communicated with the pressure transmission hole, the connecting threaded hole is used for connecting a hydraulic pipeline of the cable packer, the oil pipe threaded hole is used for connecting the tail end of the middle oil pipe, and the bleed valve installation threaded hole is used for installing a bleed valve;
a hydraulic anchor is arranged on the outer wall of the upper joint, a spring is arranged in the hydraulic anchor, and the spring is fixed on the outer wall of the upper joint by using a pressing plate and a screw;
the connecting sleeve is connected with the upper joint through a setting starting pin; the lock ring is connected with the connecting sleeve through an anti-rotation pin;
the upper cone is connected with the central tube through a slip setting starting pin; the lower cone is connected with the central tube through an unsealing pin;
a slip cage is arranged on the outer side of the slip, the slip cage is connected with the slip through a shear pin, and a slip spring is further arranged between the inner wall of the slip cage and the outer wall of the slip;
the inner wall of the lock ring and the outer wall of the central tube are provided with matched zigzag threads so as to realize the purpose of only allowing the lock ring to move downwards along the outer wall of the central tube.
2. A completion string utilizing a hydraulic line set over-the-cable packer as in claim 1, wherein: comprises an upper oil pipe, a downhole safety valve, a middle oil pipe, a deflation valve, a hydraulic pipeline setting type cable passing packer and a lower oil pipe,
the tail end of the upper oil pipe is connected with the head end of the underground safety valve, the tail end of the underground safety valve is connected with the head end of the hydraulic pipeline setting type cable passing packer through the middle oil pipe, the head end of the hydraulic pipeline setting type cable passing packer is further provided with the air release valve, the tail end of the hydraulic pipeline setting type cable passing packer is connected with the head end of the lower oil pipe, the ground hydraulic control system is connected with the underground safety valve through the underground safety valve hydraulic pipeline, the air release valve hydraulic pipeline is led out from the underground safety valve hydraulic pipeline through an upper three-way joint, the air release valve hydraulic pipeline is connected with the air release valve, the cable passing packer hydraulic pipeline is led out from the air release valve hydraulic pipeline through a lower three-way joint, and the cable passing packer hydraulic pipeline is connected with the hydraulic pipeline setting type cable passing packer.
3. The method of using a completion string using a hydraulic line set-up cable packer as in claim 2, wherein: the method comprises the following steps of:
step 1, a completion pipe column of a setting type cable-passing packer through a hydraulic pipeline is put into a designed position, a ground hydraulic system pressurizes a hydraulic pipeline of a downhole safety valve, namely hydraulic oil is injected, the pressure is sequentially transmitted to a pressure transmission hole through an upper three-way joint, a relief valve hydraulic pipeline, a lower three-way joint and a cable-passing packer hydraulic pipeline, the hydraulic oil enters a hydraulic cavity formed by the upper joint, a piston and a central pipe from the pressure transmission hole on the upper joint, after a certain pressure is reached, a setting starting pin is sheared, an upper gauge ring descends a compression rubber cylinder, an upper cone is pushed to descend to shear a slip setting starting pin, the upper cone pushes the slip onto a lower cone, then the shearing pin is sheared, the slip is opened and bitten into a sleeve under the action of an inclined plane, the setting force is completely transmitted to a deblocking pin, and in the descending process of the sleeve, a locking ring is scratched on the central pipe, zigzag threads are arranged on the locking ring and the central pipe, and the locking ring is only allowed to be led along the outer side of the central pipe
The wall moves downwards, the pressure is continuously increased to the design pressure and stabilized for a period of time, the rubber cylinder and the slips are fully set, the pressure of the oil pipe is relieved, and under the action of the lock ring, the hydraulic pipeline is set and the cable packer is kept in a set state;
step 2, a deflation valve is arranged at the upper part of the hydraulic pipeline setting type cable passing packer, when the deflation valve is closed, the lower part of the hydraulic pipeline setting type cable passing packer is a closed space, annular pressure is transmitted to the hydraulic pipeline setting type cable passing packer to cause the trend of upward movement of the hydraulic pipeline setting type cable passing packer, the trend is the same as that when the hydraulic pipeline setting type cable passing packer is disassembled, the annular pressure is completely transferred to a deblocking pin, and when the deflation valve is closed, the pressure under the well enables the hydraulic anchor to open and bite into a sleeve, so that the hydraulic pipeline setting type cable passing packer is prevented from being deblocking in advance;
step 3, when a completion string of the hydraulic pipeline setting type cable passing packer needs to be lifted out, the completion string of the hydraulic pipeline setting type cable passing packer is directly lifted up, the central pipe of the hydraulic pipeline setting type cable passing packer moves upwards, the lower cone is fixed due to the fact that the slips are meshed with the sleeve, the deblocking pin between the central pipe and the lower cone is sheared off, the lower cone, the slip cage, the upper cone and the piston move downwards relative to the central pipe, the slips are retracted under the action of the slip spring, the hydraulic pipeline setting type cable passing packer is deblocked, and the completion string of the hydraulic pipeline setting type cable passing packer can be lifted out to the ground;
when the well completion pipe string of the hydraulic pipeline setting type cable passing packer cannot be unset, the ground hydraulic system pressurizes the hydraulic pipeline of the underground safety valve, the pressure is transmitted to the unset pin, then the well completion pipe string of the hydraulic pipeline setting type cable passing packer is lifted, the hydraulic pipeline setting type cable passing packer is unset, and the well completion pipe string of the hydraulic pipeline setting type cable passing packer is lifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111182753.5A CN114458226B (en) | 2021-10-11 | 2021-10-11 | Hydraulic pipeline setting type cable passing packer and well completion pipe string using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111182753.5A CN114458226B (en) | 2021-10-11 | 2021-10-11 | Hydraulic pipeline setting type cable passing packer and well completion pipe string using same |
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| CN114458226A CN114458226A (en) | 2022-05-10 |
| CN114458226B true CN114458226B (en) | 2023-10-31 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4930573A (en) * | 1989-04-06 | 1990-06-05 | Otis Engineering Corporation | Dual hydraulic set packer |
| CN203230376U (en) * | 2013-01-30 | 2013-10-09 | 中国石油天然气股份有限公司 | Compression type set packer for multi-times of setting and unsetting |
| CN104358524A (en) * | 2014-11-17 | 2015-02-18 | 杰瑞能源服务有限公司 | Coiled tubing speed pipe column and liquid draining and gas collecting method |
| CN106223900A (en) * | 2016-10-08 | 2016-12-14 | 任鹏 | A kind of electric pump well blocks up earial drainage one temporarily from lifting casting and dragging free device |
| CN107842346A (en) * | 2016-09-20 | 2018-03-27 | 中国石油化工股份有限公司 | A kind of oil-water well combined type is intubated internal sealed seating nipple |
| CN209129576U (en) * | 2018-11-20 | 2019-07-19 | 中海油能源发展股份有限公司 | A kind of big orifice cable-passing packer |
| CN111364956A (en) * | 2020-03-18 | 2020-07-03 | 中国海洋石油集团有限公司 | Sand control injection allocation integrated packer |
| CN113250647A (en) * | 2021-07-19 | 2021-08-13 | 中国石油集团川庆钻探工程有限公司 | Suspension well completion integrated packer and well completion pipe string |
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2021
- 2021-10-11 CN CN202111182753.5A patent/CN114458226B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4930573A (en) * | 1989-04-06 | 1990-06-05 | Otis Engineering Corporation | Dual hydraulic set packer |
| CN203230376U (en) * | 2013-01-30 | 2013-10-09 | 中国石油天然气股份有限公司 | Compression type set packer for multi-times of setting and unsetting |
| CN104358524A (en) * | 2014-11-17 | 2015-02-18 | 杰瑞能源服务有限公司 | Coiled tubing speed pipe column and liquid draining and gas collecting method |
| CN107842346A (en) * | 2016-09-20 | 2018-03-27 | 中国石油化工股份有限公司 | A kind of oil-water well combined type is intubated internal sealed seating nipple |
| CN106223900A (en) * | 2016-10-08 | 2016-12-14 | 任鹏 | A kind of electric pump well blocks up earial drainage one temporarily from lifting casting and dragging free device |
| CN209129576U (en) * | 2018-11-20 | 2019-07-19 | 中海油能源发展股份有限公司 | A kind of big orifice cable-passing packer |
| CN111364956A (en) * | 2020-03-18 | 2020-07-03 | 中国海洋石油集团有限公司 | Sand control injection allocation integrated packer |
| CN113250647A (en) * | 2021-07-19 | 2021-08-13 | 中国石油集团川庆钻探工程有限公司 | Suspension well completion integrated packer and well completion pipe string |
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| Publication number | Publication date |
|---|---|
| CN114458226A (en) | 2022-05-10 |
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